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Salvus

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Code name Salvus
Developer(s)

Vaclav Hapla​,  Marta Pienkowska-Cote, Michael Afanasiev, and Lion Krischer

For queries contact: Michael Afanasiev

Link

 ​www.salvus.io

Short description

High-performance package for waveform modelling and inversion with applications ranging from laboratory ultrasound studies to planetary-scale seismology. Solves dynamic (visco-)acoustic and elastic wave propagation problems on fully unstructured hypercubic and simplicial meshes in 2 and 3 dimensions using a spectral-element approach.

Original code level

1

Current code level

1

Pilot(s) involved

PD1, PD9

Main results and References

All effort has been devoted to reduce/optimize the I/O issues, namely:

  • Parallel reading from disk enabling 

  • Parallel input topological interpolation of mesh files

Performance results

A drastic reduction for the start-up time has been achieved, primarily through the work of Vaclav Hapla of ETH Zurich and Matthew Knepley of the University at Buffalo. This reduction was primarily due to the addition of parallel mesh reading and interpolation in the DMPlex module of PETSc.

Snapshot of the simulated magnitude of the seismic displacement at Earth’s surface from a hypothetical earthquake in the southwest of Iceland. Computations were carried out by the Salvus software package, and ran in parallel on 200 GPUs at the Swiss National Supercomputing Center.
The ChEESE project has received funding from the European Union’s Horizon 2020
research and innovation programme under the grant agreement Nº 823844. All rights reserved. Legal Notice.
© CHEESE-COE.EU COPYRIGHT 2018 - 2019
  • About
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